Rudder.



No. 682,476. Patented Sept. l0, |9DI. J. MAROLF.

BUDDEB.

(Application filed June 3, 1901.)

(No Model.)

UNITED STATES PATENT rricEm JOHN MAROLF, OF'TILLAMOOK, OREGON.

RUDDER.

SPECIFICATION forming part of Letters Patent No. 682,47 6, datedSeptember 10, 1901. Application'led June 3, 1901. Serial No. 62,861. (Nomodel.)

To all whom, t may concern.-

Be it known that I, JOHN MAROLF, a citizen of the United States,residing at Tillamook, in the county of Tillamook and State of Oregon,have invented certain new and useful Improvements in Rudders, of whichthe following is a specification.

The object of my invention is to provide boats, ships, and other likevessels with a spare rudder that may be conveniently used in the eventof the main rudder being carried away or disabled. I-Ieretofore when therudder has become disabled or carried away it has been necessary eitherto repair the old rudder or to lower and adjust in place a new one.

According to my invention I provide a boat, ship, or other similarvessel with two rudders so mounted and arranged that one of the ruddersmay be used ordinarily, while the other rudder may be readily broughtinto action when the rst one is lost or disabled. The main rudder may bemounted at the stern of the ship or vessel in the usual way, while thespare rudder may be mounted imme diately forward of the main rudder,devices being provided for locking the spare rudder to hold itstationary when the main rudder is in use and for readily allowing it tobe moved into operative position when desired.

In the accompanying drawings, Figure lis a View, partly in sideelevation and partly in section, of the stern of a boat or vessel withmy improvements applied. Fig. 2 is a perspective view of the sparerudder. Fig. 3 shows a transverse section on the linel 3 3 of Fig. l.

The main rudder .e is mounted at the eX- treme rear end of the keel B,its post being provided with a downwardly-projecting portion a, seatedin a socket b in the keel. The post extends upwardly through the hull ofthe vessel and maybe provided with any suitable operating means, as ahandle O. As shown in the drawings, the handle O is located above thedeck l). The spare rudder E is located immediately forward of the mainrud der A, andit is hinged to the rear end of the keelB. Therudder-postehas a downwardlyprojecting portion e', that enters a socketb' in the keel. The lower edge of the rudder extends into a recess b2,formed in the keel.

The rudder-post is prolonged upwardly and extends through the hull ofthe vessel and at its upper end is provided with operating means, suchas a handle I1', which, as shown in the drawings, is located below thedeck D. At its forward edge the rudder is formed with slotted openingse2 close to the post e, and the eyes g on the straps G embrace therudder-post e and pass through the slots e2, the straps being secured tothe rear end of the keel. By this means the rud-V der E may be raisedand lowered and may also be turned in either direction about a verticalaxis. As shown in the drawings, the rudder E is lowered; but it may beraised and held at an elevated position by means of a key H, passingthrough or into an opening h in the rudder-post e above the partition Iin the hull of the vessel. I have shown by dotted lines in Fig. l howthe rudder may be raised and held at an elevated position. In order toguide the rudder when being moved vertically and to lock it whenlowered, I provide bifurcated guides J, which are secured to a post K,extending vertically from the hull of the vessel to the keel between thetwo rudders. The bifurcated ends of the guides embrace the rear edge ofthe rudder E, as indicated in Fig. 3. The rudder E is provided withrecesses e3, which register with the guides J when the rudder E iselevated. When the spare rudder is thus elevated and held in theposition shown by dotted lines, it may be turned in either directionabout a vertical axis; but when the rudder is lowered to the positionshown by full lines in Fig. 1. it is prevented from turning both by theguides J and by reason of the fact that the lower end of the rudderprojects into the recess b2.

When a boat, ship, or other vessel is equipped with two rudders in thisway, the

lmain rudder may be used ordinarily withoutv interference from the sparerudder. If the main rudder is carried away, the spare rudder may bebrought into action, or if the main rudder is disabled it may readily beremoved and the spare rudder used. The rear end of the keel may be cutaway at L to provide space for a screw-propeller, if desired.

I claim as my inventionl. The combination with the keel of a vessel, ofa main rudder and a spare rudder mounted ICO adjacent to the mainrudder, movable independently thereof, and provided with means forlocking it when not in use.

2. The combination with the keel of a vessel, of a main rudder, a sparerudder mounted adjacent thereto, but independently movable, means forraising and lowering the spare rudder, and means for locking the sparerud-- der When not in use.

3. The combination with the keel of a vessel, of a main rudder, meansfor operating it, a spare rudder mounted forward of the main rudder,means for independently operating the spare rudder, and devices forlocking the spare rudder when not in use.

4. The combination with the keel of a vessel, of a main rudder, a sparerudder movable vertically, means for guiding the spare rudder when movedvertically, and for locking it when not in use.

In testimony whereof I have hereunto subscribed my name.

JOHN MAROLF.

Witnesses:

LoUIs OLsEN, B. L. EDDY.

